1.
Carbohydr Res
; 391: 16-21, 2014 Jun 04.
Artigo
em Inglês
| MEDLINE
| ID: mdl-24751855
RESUMO
A polysaccharide with an estimated weight-average molar mass of 5.35×10(5) was obtained from an aqueous extract of pseudobulbs of Cyrtopodium andersonii R. Br. It was composed of d-glucose and d-mannose in 1:3 molar ratio. Chemical and spectroscopic analyses revealed a linear structure of the polymer with a backbone composed of (1â4)-linked ß-d-glucopyranosyl and mannopyranosyl units slightly branched at C-2, C-3, and C-6 by side chains, as terminal non reducing residues of d-mannopyranose and d-glucopyranose. It was found to contain 14.6% of acetyl groups substituted at C-2 of (1â4)-linked ß-d-mannopyranosyl units. The acetylated glucomannan demonstrated antiinflammatory and antiulcerogenic activities.